Manufacture of reinforced paper, pasteboard, and the like.



A; WENDLER.

MANUFACTURE OF REINFORCED PAPERRASTEBOARD, AND THE LIKE.

- APPLicAnoN FILED JULY 20, 1909.

1,169,895, Patented Feb-1, 1916.

2 SHEETS-SHEET I.

A. WENDLER.

MANUFACTURE OF REINFORCED PAPER,PASTEBOARD, AND THE 'LIKE.

v APPL'ICA-T ION FILED lULY ZO 1909. I 1., 169,895, Patented Feb. 1,1916.

2 SHEETS-SHEET 2.

JZCaaZ? I of paper,

ALEXANDER WENDLER, OF CHARLOTTENBURG, GEBIIIANY.

MANUFACTURE OF REINFORCED PAPER, PASTELBOARCQ'AND THE LIKE. I

Application filed July 20,1909.

To all whom it may concern:

Be it known that I, ALEXANDER VENDLER, a subject of the German Emperor,and residing at Charlottenburg, near Berlin, Ger- 7 man Empire, haveinvented certain new and useful Improvementsin the Manufacture ofReinforced Paper, Pasteboard, and'the like, of which the following. is aspecification.

My invention relates to the manufacture millboards f and other forms ofpasteboard and the like, of that class in. which longitudinal "wires andcrosswires are incorporated in the material by a continuous operation,the wire for forming the transverse members being wound around thelongitudinal members, without being in'terwoven therewith.- In prior:machinery for this purpose a large number of separate continuouscross'members, each delivered from its own reel, are employed, a network being. manufactured therefrom and immediately embedded. in theadvancing paper pulp.

Such machinery, however, is essentiallycomplicated by the presence of somany reels, together with the requisite supporting-cylinders and thelike for sustaining and guiding certain art1cles,

the network. Moreover, for such for instance as reinforced paper sacksfor cements and other heavy goods, reticulate strengthening is whollyunsuitable. For these sacks, as iswell known, are so made that thestrain is in the direction of the paper web and in a direction at rightangles thereto, while in the network the cross members necessarily runat a pronounced inclination to the' longitudinal members, so

I that they do not coincide with the direction substantially rightangles.

of strain. The load is first taken up by the unstrengthened paperbetween the meshes, while the latter themselves are distorted, withoutthe wires bearing the strain.

The purpose of j my invention is the production of a material in whichthe-transverse wiref's cross the longitudinal ones at \Vhen such n1a-.terial is used in' the manufacture of cement sacks and the like, it ismanifest that the directions of the strain due to the load, arecoincident with the directions of the longitudinal and cross-wires, sothat the load. is borne directly by the wires, attaching tothe use ofnetted reinforcing material are thus entirely obviated. In carryingoutmy invention the reel of wire" for the cross members is conducted.

Specification of Letters Patent.

'2, 3 is an endless apron running and the defects Patented Feb. 1. 1916.Serial No. 508,615.

. around the two outer longitudinal wires;

or around two longitudinal extensions of such wires. At the places ofbend of the crossing wire around the outer longitudinal ones, thecrossing wire is drawn tightly against the outer longitudinal wires; orinstead of this, the crossingwire may be seized by-two rollers locatedat a slightdistance in front of the reel, which press down the places ofbend. V

It, is obvious that the cross wires will lie the closer together, thatis, the angle at which they cut the longitudinal wires will the morenearly approximate to a right an-. gle, the more rapidly the reeltravels. Where such rapid motion is impracticable, two or more reels maybe employed.

I would have it understood that throughout this specification I employthe word ,wire in the broadest sense, as designating any long thinwirelike or filamentous member, and I do not therefore intend torestrict myself solely to threads of metal, but may use filaments of anysuitable material what- My new, method of manufacture is illustrated inthe accompanying drawings, in which certain forms of apparatus are shownsuitable for carrying out the process.

Figurel is an elevation and Fig. 2 a plan .of one form of apparatus inwhich the reel of cross wire 1s.carr1ed by an endless apron.

Fig. 3 is an elevation and Fig. 4: a plan of a modification in which thereel of cross wire is secured to a wheel. Fig. 5 is an elevation I andFig. 6 a vertical cross section of a second modification in which tworeels of cross wire are employed, traveling between tracks.

Referring moreparticularly to Figs. 1 and o ver two pulleys or rollers1, 2, the one of which isdriven in suitable manner. any other suitable,vmember, such as a sprocket chain might be employed. To the apron 3 thereis secured a reel '4: to hold the wire 5 for the crossing members. Thetwo outside members 6;.

apron 3, which Instead of an apron.

7 of .thejlongitudinal wires run between the .two stretches of thelongitudinal wires. (not secured to the rim of a wheel a hollow shaft10, drivenby a 12 is a tubular T-piece telescoping in the hollow shaft10 and adapted to receiveand hold apart the two outermost longitudinalwires 6, 7, whichpass along the interior of the shaft 10. 13 is a reelon which the Wires 6, 7 are wound and which is under the in? fluence' ofthe weight 14 which exertsa braking action. .On the wire is deliveredaid of the tension device or guide l5-around the longitudinal wires 6,7, thus forming cross wires. Wires 6, 7 might be fed. like the atelongitudinal wires from the 17, the rollers 18, 19 b broughtsufliciently near that they may press the cross wire down'at the placeswhere itbends around the longitudinal wires 6, 7. In such event it isnaturally unnecessary'for the shaft to be hollow. This method might alsobe applied to, the apparatus shown in Figs-.1 and- 2.

eferring'now to the modification shown in Figs. 5 and 6, the standard 19supports the two pairs of concentric-endless rails 20, 21, between Whichrun the rollers 2:2 mounted at the ends of the spindles -24 of the reels4 for the coil. of cross wire 5. 26 is an end less chain which receivesits motion from a sprocket wheel 28 driven by a belt pulley :29.

intermedirollers 16,

The chain 26 is furnished with catches 30,

which engage the extensions of the spindles 24, whereby the reels at'arecarried around the apron and 9, mountedon belt pulley 11."

'viding paper 'or the like with rotation of the wheel 9 by the reel 4with the If desired the longitudinal eing in this case tofthe wheel 9,so

tracks between thetwo rails 20, 21', and cross wire 5 thus wound aroundthe outer longitudinal wires 6, 7.-

Inplace of a single sprocket wheel and chain, two such might beprovided, one at each side of the spindles 2%. Naturally. an

pulleys might be employed instead of a chainandwheel.

Having thus described my invention, I declare that what I claim as newand desire to .ecure by Letters Patent is- '1 The herein describedmethod of proan incorporated,

consisti in stretching continuously running, pa -'allel, longitudinaledge strands,

winding a continuous strand around said ongitudinal strands,

intermediate strands between said edge strands, and incorporating thereinforce- 7 -n0n-reticular, non-interwoven reinforcemnt of longitudinaland cross strands,

running continuous vi-ding paper or the like with'an incorpo- .rated,,.non-reticular, non-interwoven 'reinforcem'ent'of longitudinal andcross-strands, consisting in stretching parallel edge and shortintervals from each other, winding around said "longitustrengtheningstrands which extend at nearly a right angle to the longitudinalstrands,'.and incorporating the reinforcement so formed in'the paper.

.In testimony whereof I afiixmy signaturein presence of two witnesses. vI

ALEXANDER WEN-DLER. Witnesses: I I

11m n? HAsPER, WoLoE An' HAUPT.

intermediate longitudinal strands spaced .at

